Developing a fast inspection path generation method for an automatic spinneret inspection system

There are over 2000 capillaries in one large spinneret. Finding each capillary and designing its inspection path is very important. This paper develops a method of finding all capillaries and auto arranging inspection path that decreases inspection time significantly. The method applies to an existing automatic spinneret inspection which includes a three-axis motorized stage, a telcentric lens, two LED light sources, a CCD camera and a personal computer. This paper tested a large ring-type spinneret using the presented method and system in this paper. Inspecting 2016 capillaries only require approximately 800 s.